TSU scientists tested the satellite and the ISS protection systems

TOMSK, Mar 12 – RIA Tomsk. Research team of the Scientific
Research Institute of Applied Mathematics and Mechanics of Tomsk State University (SRIAMM TSU) made a research to protect spacecraft against cosmic
particles; they created methods and models to test spacecraft materials in
extreme environment under maximum load conditions, reports the press service of
the university.

It is specified that cosmic
particles, including debris, pose a serious danger to spacecraft. Moving at a
speed of more than 5 kilometers per second, even small particles (1-2
millimeters) are able to penetrate the main body or destroy the equipment of
the spacecraft.

"Scientists (of the Scientific
Research Institute of Applied Mathematics and Mechanics of Tomsk State
University) developed numerical methods which allow to test protective
structures (grids, screens) and materials (for spacecraft), varying the
collision speed, obstacle load, etc. The models of deformation and fracture of
materials allow to make numerical experiments that are much cheaper and faster
than full-scale tests", – is said in the statement.

It is noted that the theoretical
developments of the scientists of the Scientific Research Institute of Applied
Mathematics and Mechanics of Tomsk State University (SRIAMM TSU) will become
the basis for the creation of an automated engineering calculation system which
allows to simulate an explosion, collision and other situations of
high-intensity impact on materials and spacecraft designs. Scientists
experimentally confirmed theoretical groundwork.

"A series of experiments was
carried out with the use of a unique light-gas ballistic gun, which allows to
accelerate particles to cosmic velocities. Installation ... can throw various
drummers with a speeds of up to 8 kilometers per second. The accuracy of
theoretical models and numerical calculations was confirmed during the
experiment", – the press service quotes the project manager Sergey Pashkov.

In particular, the experiment
allowed to acquire data on the collision of micrometeoroids with glasses of the
ISS windows and optical instruments. The information obtained as a result of
the work of scientists of the SRIAMM TSU will help to create new light and
durable materials and structures for the protection of spacecraft, is
emphasized in the message of the university.